noun plural but singular or plural in construction Etymology: Greek kalos beautiful + sthenos strength Date: 1827 systematic rhythmic bodily exercises performed usually without apparatus, the art or practice of ~
CALISTHENICS
Meaning of CALISTHENICS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012